Folder or seam-opener for sewing-machines



W. J. LOGGIE.

FOLDERHOR SEAM OPENER FOR SEWING MACHINES.

ilaoented May 18, 1920.

' APPLICATION FILED NOV. 27,1916.

2 SHEETS-SHEET 1.

w. l. LOGGIE.

FULDER 0R SEAM OPENER FOR. SEWING MACHINES.

' APPLICATION FILED NOV. 2?, 1916. 1,340,782.

Patented May 18,1920.

2 SHEETS-SHEET 2.

UNITED. snares PATENT OFFICE.

WILLIAM J. LOGGIE, OF FRANKFURT, KENTUCKY, ASSIGNOR TO UNION' SPECIAL MACHINE GOMIANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

FOLDER OR SEAN-OPENER FOR SEWING-MACHINES.

To all whom it may concern:

Be it known that I, WILLIAM J. Losers, a citizen of the United States, residing at Frankfort, in the county of Franklin and State of Kentucky: have invented certain new and useful Improvements in Folders or Seam-Openers for Sewing-vlacliines, of which the following is a description, reference being had to the accompanying draw ing and to the figures of reference marked thereon.

My invention relates to sewing machines and particularly to a seam opener and folder whereby a seam previously formed by superposing and stitching together the marginal portions of two plies of fabric,

may be opened out and the marginal edges stitched under the body fabrics, thus making a fiat seam. 1

The attachment has been especially designed for use in connection with staying machines and the object is to provide an attachment having a central, seam opening rib or guide cooperating with complemental guiding portions whereby the seam formed by superposing the two edges of fabric may be guided, and the marginal edges spread positively and underfolded and then fed to the two line stitch forming mechanism of such a machine.

Another object of the invention is to so arrange the parts as that the central rib or guide will positively enter between the two marginal edges and spread the edges laterally whereby in loading the device hand manipulation of the marginal edges to spread them will not be necessary.

To carry out the above objects, the inven-" tion consists in the various matters hereinafter described and referred to in the ap pended claims.

The invention is illustrated in the accompanying drawings, in which Figure 1 illustrates a portion of a sewing machine with my improved folder and seam opening attachment applied thereto;

Fig. 2 is a front View thereof.

Fig. 3 is a central vertical sectional View on the line 3-3 of Fig. 1.

Fig. 4 is a transverse sectional View on the line 4-4 of Fig. 1., showing the fabric in position.

Specification of Letters Patent.

Patented May 18, 1920.

Fig. 5 is a view similar to Fig. 4 on the line 5-5 of ig. 1, showing the fabric folded and ready to be stitched, and

Fig. 6 is a detail view, showing the abutted folded edges of the fabric and the binding strip sewed thereto.

In the drawing, 1 represents the bed plate of a sewing macliine of well known type, having stitch forming mechanism, including two needles 2, 2,'arranged obliquely to each other respecting the line of feed and cooperating with two loopers 3, 3, whereby two lines of stitching are formed by the cooperation of the needles and loopers.

The bed plate has the usual throat plate 4 with the needle and feed slots. The presser foot which is shown at 5 has a central keel 6. The attachment which forms the subject matter of the invention consists of a base piece 7, attached to the bed plate by screws 8. v r

Adjustably attached to the base piece by screws 9 and elongated slots 10'are spaced guiding members 11, thefront portions 12 of the walls thereof being vertical and spaced apart, parallel to each other, while the rear portions are undercut as at 13, forming recesses. Intermediate the spaced guiding members 11 is a center guide or fin 14, substantially V-shaped in cross section and with sidewalls 15 flaring from the apex rearwardly, the side walls forming with the undercut portions 13 of the guiding members 11, folding and guiding recesses for the marginal edges of the fabrics 16.

Two pieces of fabric 16, whose edges have been superposed and united by a line of stitching 17 and which it is desired to stay or cover, are fed to the sewing machine with their 'marginal superposed edges passing vertically between the front portion: 12 of the guiding members 11. The apex of the center guide or fin 14 enters between the marginal edges 18 and opens the seam, the

flaring walls 15 spreadingthe .marginal edges apart and cooperating with the undercut portions 13 of said guiding member to underfold and flatten out the marginal edges and deliver them underthe presser foot 5 of the sewing machine whence they are fed to the stitch forming mechanism and sewed fhe base piece 7; has" a, recess 19in its underfface; which rec'ze's is centrally dis I POSGd relative to the Qeiiterguideilb This} 1 rece ssis adapted'toffeceivea guid andfac ing'strip.; The, facing strip will be stitchd-' to the out-turnededge portions of "the fabric v I ytitm oftheirlength and mergingintoflaring c, ding 1n the nter line of the seam;

the keel 6. of the mwr fog; 1T3

will befsi-en that]ytheflcenstru' on llei'eifl 'descfibe'd5jt11e marginaLedges] ofpre k l; gmal edges (if @1111 tiduslyseamd fabrig mpris ng mw f'g id f m i -ha ing vertical parallelfiwalls; throughoutgap'cirtinnljw I of their length ianc1--- merging? into 'fipriiigfll laterally, arranged mcsses zmdraf, f central guide formed with flaring Walls complementary with flaring rcessesin the s 3.11mattachent fof foldingI thel mar: mic, -w-

WP ing vertical par311e1'wa11s throughoiita p01};

viously seamediabrics mayba ,L placed "be ftween the ertical of the spacedguid r 511;}; members; and mwmtmny, guided 1 and I 'spr ead out fiati byithe cenfifal ifin' 'aiidjfedif to the stitch forming mechahism of thehsew;

machine;

seetionsbythe needles 242;

,I claim I Letters Patent, is 1+- Having thus described my mvention, What 35" new and desire to secure by complementary t0 the flarlng recessesi'nthe I 1. In a devicefor separating and laterally turning the seamed edges of fabric sections,

the combination of a central guide provided with an apexat its front end and with" I flaring. sides extendinglrearWardly from said apex,spaced'guiding members"-lobatednafl 1 Opposite sides of theapexoif said central; guide ,isaid apex of the-centraiaguide bing disposed, midway befcween the; front; and

- r r edg wfsa d p dig idi l e s;

Y j whereby said" guiding mmbersfoprate t0 2.1 An attachment forfiblding;

filial g s f p viously' me k cgmprising spageed guiding m mbers laterally arranged guiding recessespand a;

,cemml guide-formed With" flaring walls spacmi guiding membermthe forward endbf the'central guide terminating in the space between the vertical allspfthespgc ed guiding members;

iinf thei prsence'i oft wq Witnesses; I z

"Wi tiless es z j' m @gnterl an 51515 51; th'ei jfabim se ioimo tha 1 antral [guideg l' anaa aidwguiding 1 members If f f airingv side*-walls,partially overlappin the lntestimony whereof Iaffix mysignatur 

